Gas bottle cap



FIG. 1 is a first side view of a first gas bottle cap.

FIG. 2 is a second side view of a first gas bottle cap.

FIG. 3 is a third side view of a first gas bottle cap.

FIG. 4 is a top isometric view of a first gas bottle cap.

FIG. 5 is a top view of a first gas bottle cap.

FIG. 6 is a bottom isometric view of a first gas bottle cap; and,

FIG. 7 is a bottom view of a gas bottle cap. 

CLAIM The ornamental design for a gas bottle cap, as shown and described. 